fix(ui): PluginAdd tab check

Author: Guillaume Chau

packages/@vue/cli-ui/src/views/ProjectPluginsAdd.vue

@@ -185,11 +185,7 @@ export default {
       query: PLUGIN_INSTALLATION,
       fetchPolicy: 'netork-only',
       result () {
-        if (this.pluginInstallation.pluginId) {
-          this.tabId = 'config'
-        } else {
-          this.tabId = 'search'
-        }
+        this.checkTab()
       },
     }
   },
@@ -203,6 +199,7 @@ export default {
   mounted () {
     requestAnimationFrame(() => {
       this.$refs.searchInput.focus()
+      this.checkTab()
     })
   },
 
@@ -211,6 +208,16 @@ export default {
       this.$router.push({ name: 'project-home' })
     },
 
+    checkTab () {
+      if (!this.pluginInstallation) return
+
+      if (this.pluginInstallation.pluginId) {
+        this.tabId = 'config'
+      } else {
+        this.tabId = 'search'
+      }
+    },
+
     async installPlugin () {
       try {
         await this.$apollo.mutate({